625 lines
20 KiB
C
625 lines
20 KiB
C
/* drmP.h -- Private header for Direct Rendering Manager -*- linux-c -*-
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* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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*/
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#ifndef _DRM_P_H_
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#define _DRM_P_H_
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#if defined(_KERNEL) || defined(__KERNEL__)
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/* DRM template customization defaults
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*/
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#ifndef __HAVE_AGP
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#define __HAVE_AGP 0
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#endif
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#ifndef __HAVE_MTRR
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#define __HAVE_MTRR 0
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#endif
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#ifndef __HAVE_CTX_BITMAP
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#define __HAVE_CTX_BITMAP 0
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#endif
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#ifndef __HAVE_DMA
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#define __HAVE_DMA 0
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#endif
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#ifndef __HAVE_IRQ
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#define __HAVE_IRQ 0
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#endif
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#define DRM_DEBUG_CODE 0 /* Include debugging code (if > 1, then
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also include looping detection. */
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typedef struct drm_device drm_device_t;
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typedef struct drm_file drm_file_t;
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/* There's undoubtably more of this file to go into these OS dependent ones. */
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#ifdef __FreeBSD__
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#include "drm_os_freebsd.h"
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#elif defined __NetBSD__
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#include "drm_os_netbsd.h"
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#endif
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#include "drm.h"
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/* Begin the DRM... */
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#define DRM_HASH_SIZE 16 /* Size of key hash table */
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#define DRM_KERNEL_CONTEXT 0 /* Change drm_resctx if changed */
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#define DRM_RESERVED_CONTEXTS 1 /* Change drm_resctx if changed */
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#define DRM_FLAG_DEBUG 0x01
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#define DRM_MEM_DMA 0
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#define DRM_MEM_SAREA 1
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#define DRM_MEM_DRIVER 2
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#define DRM_MEM_MAGIC 3
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#define DRM_MEM_IOCTLS 4
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#define DRM_MEM_MAPS 5
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#define DRM_MEM_BUFS 6
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#define DRM_MEM_SEGS 7
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#define DRM_MEM_PAGES 8
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#define DRM_MEM_FILES 9
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#define DRM_MEM_QUEUES 10
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#define DRM_MEM_CMDS 11
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#define DRM_MEM_MAPPINGS 12
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#define DRM_MEM_BUFLISTS 13
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#define DRM_MEM_AGPLISTS 14
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#define DRM_MEM_TOTALAGP 15
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#define DRM_MEM_BOUNDAGP 16
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#define DRM_MEM_CTXBITMAP 17
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#define DRM_MEM_STUB 18
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#define DRM_MEM_SGLISTS 19
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#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
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/* Internal types and structures */
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#define DRM_ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
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#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
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#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
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#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
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(_map) = (_dev)->context_sareas[_ctx]; \
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} while(0)
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typedef struct drm_pci_id_list
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{
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int vendor;
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int device;
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long driver_private;
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char *name;
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} drm_pci_id_list_t;
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typedef struct drm_ioctl_desc {
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int (*func)(DRM_IOCTL_ARGS);
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int auth_needed;
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int root_only;
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} drm_ioctl_desc_t;
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typedef struct drm_magic_entry {
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drm_magic_t magic;
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struct drm_file *priv;
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struct drm_magic_entry *next;
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} drm_magic_entry_t;
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typedef struct drm_magic_head {
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struct drm_magic_entry *head;
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struct drm_magic_entry *tail;
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} drm_magic_head_t;
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typedef struct drm_buf {
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int idx; /* Index into master buflist */
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int total; /* Buffer size */
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int order; /* log-base-2(total) */
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int used; /* Amount of buffer in use (for DMA) */
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unsigned long offset; /* Byte offset (used internally) */
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void *address; /* Address of buffer */
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unsigned long bus_address; /* Bus address of buffer */
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struct drm_buf *next; /* Kernel-only: used for free list */
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__volatile__ int pending; /* On hardware DMA queue */
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DRMFILE filp; /* Unique identifier of holding process */
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int context; /* Kernel queue for this buffer */
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enum {
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DRM_LIST_NONE = 0,
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DRM_LIST_FREE = 1,
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DRM_LIST_WAIT = 2,
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DRM_LIST_PEND = 3,
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DRM_LIST_PRIO = 4,
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DRM_LIST_RECLAIM = 5
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} list; /* Which list we're on */
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int dev_priv_size; /* Size of buffer private stoarge */
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void *dev_private; /* Per-buffer private storage */
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} drm_buf_t;
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typedef struct drm_freelist {
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int initialized; /* Freelist in use */
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atomic_t count; /* Number of free buffers */
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drm_buf_t *next; /* End pointer */
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int low_mark; /* Low water mark */
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int high_mark; /* High water mark */
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} drm_freelist_t;
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typedef struct drm_buf_entry {
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int buf_size;
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int buf_count;
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drm_buf_t *buflist;
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int seg_count;
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int page_order;
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vm_offset_t *seglist;
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dma_addr_t *seglist_bus;
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drm_freelist_t freelist;
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} drm_buf_entry_t;
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typedef TAILQ_HEAD(drm_file_list, drm_file) drm_file_list_t;
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struct drm_file {
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TAILQ_ENTRY(drm_file) link;
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int authenticated;
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int minor;
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pid_t pid;
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uid_t uid;
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int refs;
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drm_magic_t magic;
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unsigned long ioctl_count;
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struct drm_device *devXX;
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#ifdef DRIVER_FILE_FIELDS
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DRIVER_FILE_FIELDS;
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#endif
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};
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typedef struct drm_lock_data {
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drm_hw_lock_t *hw_lock; /* Hardware lock */
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DRMFILE filp; /* Unique identifier of holding process (NULL is kernel)*/
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int lock_queue; /* Queue of blocked processes */
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unsigned long lock_time; /* Time of last lock in jiffies */
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} drm_lock_data_t;
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/* This structure, in the drm_device_t, is always initialized while the device
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* is open. dev->dma_lock protects the incrementing of dev->buf_use, which
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* when set marks that no further bufs may be allocated until device teardown
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* occurs (when the last open of the device has closed). The high/low
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* watermarks of bufs are only touched by the X Server, and thus not
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* concurrently accessed, so no locking is needed.
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*/
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typedef struct drm_device_dma {
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drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
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int buf_count;
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drm_buf_t **buflist; /* Vector of pointers info bufs */
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int seg_count;
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int page_count;
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unsigned long *pagelist;
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unsigned long byte_count;
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enum {
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_DRM_DMA_USE_AGP = 0x01,
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_DRM_DMA_USE_SG = 0x02
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} flags;
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/* DMA support */
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drm_buf_t *this_buffer; /* Buffer being sent */
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drm_buf_t *next_buffer; /* Selected buffer to send */
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} drm_device_dma_t;
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#if __REALLY_HAVE_AGP
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typedef struct drm_agp_mem {
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void *handle;
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unsigned long bound; /* address */
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int pages;
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struct drm_agp_mem *prev;
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struct drm_agp_mem *next;
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} drm_agp_mem_t;
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typedef struct drm_agp_head {
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device_t agpdev;
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struct agp_info info;
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const char *chipset;
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drm_agp_mem_t *memory;
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unsigned long mode;
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int enabled;
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int acquired;
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unsigned long base;
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int mtrr;
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int cant_use_aperture;
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unsigned long page_mask;
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} drm_agp_head_t;
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#endif
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typedef struct drm_sg_mem {
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unsigned long handle;
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void *virtual;
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int pages;
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dma_addr_t *busaddr;
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} drm_sg_mem_t;
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typedef struct drm_local_map {
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unsigned long offset; /* Physical address (0 for SAREA)*/
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unsigned long size; /* Physical size (bytes) */
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drm_map_type_t type; /* Type of memory mapped */
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drm_map_flags_t flags; /* Flags */
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void *handle; /* User-space: "Handle" to pass to mmap */
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/* Kernel-space: kernel-virtual address */
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int mtrr; /* Boolean: MTRR used */
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/* Private data */
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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} drm_local_map_t;
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typedef TAILQ_HEAD(drm_map_list, drm_map_list_entry) drm_map_list_t;
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typedef struct drm_map_list_entry {
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TAILQ_ENTRY(drm_map_list_entry) link;
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drm_local_map_t *map;
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} drm_map_list_entry_t;
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TAILQ_HEAD(drm_vbl_sig_list, drm_vbl_sig);
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typedef struct drm_vbl_sig {
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TAILQ_ENTRY(drm_vbl_sig) link;
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unsigned int sequence;
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int signo;
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int pid;
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} drm_vbl_sig_t;
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/**
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* DRM device functions structure
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*/
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struct drm_device;
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struct drm_driver_fn {
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int (*preinit)(struct drm_device *, unsigned long flags);
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int (*postinit)(struct drm_device *, unsigned long flags);
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void (*prerelease)(struct drm_device *, void *filp);
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void (*pretakedown)(struct drm_device *);
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int (*postcleanup)(struct drm_device *);
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int (*presetup)(struct drm_device *);
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int (*postsetup)(struct drm_device *);
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void (*open_helper)(struct drm_device *, drm_file_t *);
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void (*release)(struct drm_device *, void *filp);
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void (*dma_ready)(struct drm_device *);
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int (*dma_quiescent)(struct drm_device *);
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int (*dma_flush_block_and_flush)(struct drm_device *, int context, drm_lock_flags_t flags);
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int (*dma_flush_unblock)(struct drm_device *, int context, drm_lock_flags_t flags);
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int (*context_ctor)(struct drm_device *dev, int context);
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int (*context_dtor)(struct drm_device *dev, int context);
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int (*kernel_context_switch)(struct drm_device *dev, int old, int new);
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int (*kernel_context_switch_unlock)(struct drm_device *dev);
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int (*dma_schedule)(struct drm_device *dev, int locked);
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};
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struct drm_device {
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#ifdef __NetBSD__
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struct device device; /* NetBSD's softc is an extension of struct device */
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#endif
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const char *name; /* Simple driver name */
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char *unique; /* Unique identifier: e.g., busid */
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int unique_len; /* Length of unique field */
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#ifdef __FreeBSD__
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device_t device; /* Device instance from newbus */
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#endif
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struct cdev *devnode; /* Device number for mknod */
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int if_version; /* Highest interface version set */
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int flags; /* Flags to open(2) */
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/* Locks */
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#if defined(__FreeBSD__) && __FreeBSD_version > 500000
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#if __HAVE_DMA
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struct mtx dma_lock; /* protects dev->dma */
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#endif
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#if __HAVE_IRQ
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struct mtx irq_lock; /* protects irq condition checks */
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#endif
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struct mtx dev_lock; /* protects everything else */
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#endif
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/* Usage Counters */
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int open_count; /* Outstanding files open */
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int buf_use; /* Buffers in use -- cannot alloc */
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/* Performance counters */
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unsigned long counters;
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drm_stat_type_t types[15];
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atomic_t counts[15];
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/* Authentication */
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drm_file_list_t files;
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drm_magic_head_t magiclist[DRM_HASH_SIZE];
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/* Linked list of mappable regions. Protected by dev_lock */
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drm_map_list_t *maplist;
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drm_local_map_t **context_sareas;
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int max_context;
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drm_lock_data_t lock; /* Information on hardware lock */
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/* DMA queues (contexts) */
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drm_device_dma_t *dma; /* Optional pointer for DMA support */
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/* Context support */
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int irq; /* Interrupt used by board */
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int irq_enabled; /* True if the irq handler is enabled */
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#ifdef __FreeBSD__
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int irqrid; /* Interrupt used by board */
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struct resource *irqr; /* Resource for interrupt used by board */
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#elif defined(__NetBSD__)
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struct pci_attach_args pa;
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pci_intr_handle_t ih;
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#endif
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void *irqh; /* Handle from bus_setup_intr */
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int pci_domain;
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int pci_bus;
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int pci_slot;
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int pci_func;
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atomic_t context_flag; /* Context swapping flag */
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int last_context; /* Last current context */
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#if __FreeBSD_version >= 400005
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struct task task;
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#endif
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#if __HAVE_VBL_IRQ
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int vbl_queue; /* vbl wait channel */
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atomic_t vbl_received;
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#endif
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#ifdef __FreeBSD__
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struct sigio *buf_sigio; /* Processes waiting for SIGIO */
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#elif defined(__NetBSD__)
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pid_t buf_pgid;
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#endif
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/* Sysctl support */
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struct drm_sysctl_info *sysctl;
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#if __REALLY_HAVE_AGP
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drm_agp_head_t *agp;
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#endif
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drm_sg_mem_t *sg; /* Scatter gather memory */
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atomic_t *ctx_bitmap;
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void *dev_private;
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struct drm_driver_fn fn_tbl;
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drm_local_map_t *agp_buffer_map;
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int dev_priv_size;
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};
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extern void DRM(driver_register_fns)(struct drm_device *dev);
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extern int DRM(flags);
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/* Memory management support (drm_memory.h) */
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extern void DRM(mem_init)(void);
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extern void DRM(mem_uninit)(void);
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extern void *DRM(alloc)(size_t size, int area);
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extern void *DRM(calloc)(size_t nmemb, size_t size, int area);
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extern void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size,
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int area);
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extern void DRM(free)(void *pt, size_t size, int area);
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extern void *DRM(ioremap)(drm_device_t *dev, drm_local_map_t *map);
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extern void DRM(ioremapfree)(drm_local_map_t *map);
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extern int DRM(mtrr_add)(unsigned long offset, size_t size, int flags);
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extern int DRM(mtrr_del)(unsigned long offset, size_t size, int flags);
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#if __REALLY_HAVE_AGP
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extern agp_memory *DRM(alloc_agp)(int pages, u32 type);
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extern int DRM(free_agp)(agp_memory *handle, int pages);
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extern int DRM(bind_agp)(agp_memory *handle, unsigned int start);
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extern int DRM(unbind_agp)(agp_memory *handle);
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#endif
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extern int DRM(context_switch)(drm_device_t *dev, int old, int new);
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extern int DRM(context_switch_complete)(drm_device_t *dev, int new);
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#if __HAVE_CTX_BITMAP
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extern int DRM(ctxbitmap_init)( drm_device_t *dev );
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extern void DRM(ctxbitmap_cleanup)( drm_device_t *dev );
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extern void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle );
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extern int DRM(ctxbitmap_next)( drm_device_t *dev );
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#endif
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/* Locking IOCTL support (drm_lock.h) */
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extern int DRM(lock_take)(__volatile__ unsigned int *lock,
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unsigned int context);
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extern int DRM(lock_transfer)(drm_device_t *dev,
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__volatile__ unsigned int *lock,
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unsigned int context);
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extern int DRM(lock_free)(drm_device_t *dev,
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__volatile__ unsigned int *lock,
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unsigned int context);
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/* Buffer management support (drm_bufs.h) */
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extern int DRM(order)( unsigned long size );
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#if __HAVE_DMA
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/* DMA support (drm_dma.h) */
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extern int DRM(dma_setup)(drm_device_t *dev);
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extern void DRM(dma_takedown)(drm_device_t *dev);
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extern void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
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extern void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp);
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#endif
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#if __HAVE_IRQ
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/* IRQ support (drm_irq.h) */
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extern int DRM(irq_install)(drm_device_t *dev);
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extern int DRM(irq_uninstall)( drm_device_t *dev );
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extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS );
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extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
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extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
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extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
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#if __HAVE_IRQ_BH
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extern void DRM(irq_immediate_bh)( DRM_TASKQUEUE_ARGS );
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#endif
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#endif
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#if __HAVE_VBL_IRQ
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extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
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extern void DRM(vbl_send_signals)( drm_device_t *dev );
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#endif
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#if __REALLY_HAVE_AGP
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/* AGP/GART support (drm_agpsupport.h) */
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extern drm_agp_head_t *DRM(agp_init)(void);
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extern void DRM(agp_uninit)(void);
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extern void DRM(agp_do_release)(void);
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extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type);
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extern int DRM(agp_free_memory)(agp_memory *handle);
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extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start);
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extern int DRM(agp_unbind_memory)(agp_memory *handle);
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#endif
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#if __HAVE_SG
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/* Scatter Gather Support (drm_scatter.h) */
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extern void DRM(sg_cleanup)(drm_sg_mem_t *entry);
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#endif
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#if __REALLY_HAVE_SG
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/* ATI PCIGART support (ati_pcigart.h) */
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extern int DRM(ati_pcigart_init)(drm_device_t *dev,
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unsigned long *addr,
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dma_addr_t *bus_addr);
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extern int DRM(ati_pcigart_cleanup)(drm_device_t *dev,
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unsigned long addr,
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dma_addr_t bus_addr);
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#endif
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/* Locking IOCTL support (drm_drv.h) */
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extern int DRM(lock)(DRM_IOCTL_ARGS);
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extern int DRM(unlock)(DRM_IOCTL_ARGS);
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extern int DRM(version)( DRM_IOCTL_ARGS );
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extern int DRM(setversion)( DRM_IOCTL_ARGS );
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/* Misc. IOCTL support (drm_ioctl.h) */
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extern int DRM(irq_by_busid)(DRM_IOCTL_ARGS);
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extern int DRM(getunique)(DRM_IOCTL_ARGS);
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extern int DRM(setunique)(DRM_IOCTL_ARGS);
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extern int DRM(getmap)(DRM_IOCTL_ARGS);
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extern int DRM(getclient)(DRM_IOCTL_ARGS);
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extern int DRM(getstats)(DRM_IOCTL_ARGS);
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extern int DRM(noop)(DRM_IOCTL_ARGS);
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/* Context IOCTL support (drm_context.h) */
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extern int DRM(resctx)(DRM_IOCTL_ARGS);
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extern int DRM(addctx)(DRM_IOCTL_ARGS);
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extern int DRM(modctx)(DRM_IOCTL_ARGS);
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extern int DRM(getctx)(DRM_IOCTL_ARGS);
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extern int DRM(switchctx)(DRM_IOCTL_ARGS);
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extern int DRM(newctx)(DRM_IOCTL_ARGS);
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extern int DRM(rmctx)(DRM_IOCTL_ARGS);
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extern int DRM(setsareactx)(DRM_IOCTL_ARGS);
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extern int DRM(getsareactx)(DRM_IOCTL_ARGS);
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/* Drawable IOCTL support (drm_drawable.h) */
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extern int DRM(adddraw)(DRM_IOCTL_ARGS);
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extern int DRM(rmdraw)(DRM_IOCTL_ARGS);
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/* Authentication IOCTL support (drm_auth.h) */
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extern int DRM(getmagic)(DRM_IOCTL_ARGS);
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extern int DRM(authmagic)(DRM_IOCTL_ARGS);
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/* Buffer management support (drm_bufs.h) */
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extern int DRM(addmap)(DRM_IOCTL_ARGS);
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extern int DRM(rmmap)(DRM_IOCTL_ARGS);
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#if __HAVE_DMA
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extern int DRM(addbufs)(DRM_IOCTL_ARGS);
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extern int DRM(infobufs)(DRM_IOCTL_ARGS);
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extern int DRM(markbufs)(DRM_IOCTL_ARGS);
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extern int DRM(freebufs)(DRM_IOCTL_ARGS);
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extern int DRM(mapbufs)(DRM_IOCTL_ARGS);
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#endif
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/* IRQ support (drm_irq.h) */
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#if __HAVE_IRQ || __HAVE_DMA
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extern int DRM(control)(DRM_IOCTL_ARGS);
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#endif
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#if __HAVE_VBL_IRQ
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extern int DRM(wait_vblank)(DRM_IOCTL_ARGS);
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#endif
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/* AGP/GART support (drm_agpsupport.h) */
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#if __REALLY_HAVE_AGP
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extern int DRM(agp_acquire)(DRM_IOCTL_ARGS);
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extern int DRM(agp_release)(DRM_IOCTL_ARGS);
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extern int DRM(agp_enable)(DRM_IOCTL_ARGS);
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extern int DRM(agp_info)(DRM_IOCTL_ARGS);
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extern int DRM(agp_alloc)(DRM_IOCTL_ARGS);
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extern int DRM(agp_free)(DRM_IOCTL_ARGS);
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extern int DRM(agp_unbind)(DRM_IOCTL_ARGS);
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extern int DRM(agp_bind)(DRM_IOCTL_ARGS);
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#endif
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/* Scatter Gather Support (drm_scatter.h) */
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#if __HAVE_SG
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extern int DRM(sg_alloc)(DRM_IOCTL_ARGS);
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extern int DRM(sg_free)(DRM_IOCTL_ARGS);
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#endif
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/* consistent PCI memory functions (drm_pci.h) */
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extern void *DRM(pci_alloc)(drm_device_t *dev, size_t size,
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size_t align, dma_addr_t maxaddr,
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dma_addr_t *busaddr);
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extern void DRM(pci_free)(drm_device_t *dev, size_t size,
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void *vaddr, dma_addr_t busaddr);
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/* Inline replacements for DRM_IOREMAP macros */
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static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev)
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{
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map->handle = DRM(ioremap)( dev, map );
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}
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#if 0
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static __inline__ void drm_core_ioremap_nocache(struct drm_map *map, struct drm_device *dev)
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{
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map->handle = DRM(ioremap_nocache)(dev, map);
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}
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#endif
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static __inline__ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev)
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{
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if ( map->handle && map->size )
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DRM(ioremapfree)( map );
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}
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static __inline__ struct drm_local_map *drm_core_findmap(struct drm_device *dev, unsigned long offset)
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{
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drm_map_list_entry_t *listentry;
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TAILQ_FOREACH(listentry, dev->maplist, link) {
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if ( listentry->map->offset == offset ) {
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return listentry->map;
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}
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}
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return NULL;
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}
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static __inline__ void drm_core_dropmap(struct drm_map *map)
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{
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}
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#endif /* __KERNEL__ */
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#endif /* _DRM_P_H_ */
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